Bag-filling machine



C. H. RICE March 3, 1931.

BAG FILLING MACHINE Filed Jan. 3l, 1930 2 Sheets-Sheet l """"m`wlllllllllllflllflllllillllllllA W25 mw m, O "my v/l J 9. C l m Y E N R OT T A March 3, 1931. C. RICE 1,795,265

BAG FILLING MACHINE Filed Jan. 3l, 1930 2 Sheets-Sheet 2 INVENTORATTORNEY Patented Mar. 3, 1931 UNITED STATES PATENT? OFFICE CLARK E.RICE, F FINDLAY, OHIO BAG-FILLING MACHINE Application led January 31,1930. Serial No. 425,009.

This invention relates to an automatic bag bracket member 3 is arrangedwithin the filling machine and has as one of its objects hopper near thetop thereof, and supports to provide a machine whereby a pre-deteraconical housing 4 in which is arranged amined quantity, by weight, ofany finely bearingr 5 for the upper end of' a shaft 6, an

5 ground, powdered or similar material may oil conducting pipe 7 beingled through the 55 be delivered to one or more receptacles and wall ofthe hopper and through the housing the supply cut off when thepre-determined 4, and in lcommunication with the bore of the weight ofthe material has 'been delivered bearing 5, so as to supply lubricant tothis to each receptacle. portion of the shaft, and yet prevent any ofAnother object of the invention is to prothe lubricant reaching any ofthe material 60 vide means whereby the material may be deintroduced intothe hopper. The lower end livered, uniformly to several receptacles, ofthe shaft 6 is mounted in a bearing 8 upon through spouts radiating froma hopper, so the under side of the bottom 2 of the hopper that two ormore receptacles may be filled siand a bevel gear 9 is fixed upon thisend of multaneously, thereby economizing in the the shaft and mesheswith a bevel gear 1U 65 time required to weigh the material andtransmounted upon a shaft 11 driven by an elecfer the same to thereceptacles. tric motor (not shown). Blades 12 radiate This inventionalso consists in certain other from a collar 13 which is fixed upon theshaft features of construction and in the combina- 6 immediately abovethe bottom 2 of the hoption and arrangement of the several parts to per,and the hopper is provided at diametri- 70 be hereinafter fullydescribed, illustrated in cally opposite points upon its wall theltanthe accompanying drawings and specifically gentiallyextending outletspouts indicated by pointed out in the appended claims. the numeral 14through which the material, In describingr my invention in detail,refintroduced into the hopper may be delivered,

crencc will be had to the accompanying drawthrough the rotation of theblades 12, into 75 ings wherein like characters denote like or thereceptacles which are supported by outcorresponding parts through theseveral ward extensions of the said spouts, these outviews, and in whichward extensions being indicated by the num- Figure 1 is a verticaldiametric sectional eral 15. 3 view through the machine embodying thein- The spout extensions 15 are fitted to the 80 vention. ends of thespouts 14 and extend in aline- Figure 2 is a horizontal sectional Viewment therewith and their under sides are Y therethrough on the line 2 2of Figure 1 cut away as indicated by the numeral 16, so looking in thedirection indicated by the arthat the mouth of a sack 17 may be arranged3 rows. over each of the extensions, and in order that 85 Figure 3 is aview in side elevation of a the sack may be held assembled with theportion of the machine. spout extension and the supply of materialFigure 4 is a detail view in elevation illusthrough the spout to thesack cut off when trat-ing a part of the structure which isshown therequired weight of the materia-l has been in Figure 3. delivered to thesack, each spout 14 is pref- 90 Figure is a view illustratingaslightmodierably formed in two mutually connected fication of the invention.sections, one of which is integra-1 with the The machine comprises ahopper 1 which hopper 1 and the other separably connected is preferablyof cylindrical form and which with the first mentioned section, and thelatinay be supported in any suitable manner, ter section is formed witha vertically ex- 95 and into which the finely ground, powdered tendingrecess 18 in which is shdably fitted a or similar fine material, to bemeasured and plate 19 having an opening 20 therein, which packed inreceptacles, may be introduced. is of circular form and which is adaptedto The hopper 1 is preferably open at its top register with the bore ofthe respective spout 5 and is provided with a closed bottom 2 and a l14,when the plate 19 is slid to one positionl l0@ of its verticaladjustment. A tension spring 21 is provided at its lower endI with aneye 22 which engages in an opening 23 in the upper end of the plate 19,and ihe plate is provided at its lower end with a downwardy extendingstem 24 which is bifurcated as indicated by the numeral 25 to straddle afoot leverG mounted at one end on a support 27 below the hopper 1. Eachplate 19 supports an arm 28 which extends outwardly at right angles fromthe plate above the respective spout 14, and thence downwardly at rightangles from a portion 29 provided with an arcuate head 30 which. in thelowered position of the plate 19 embraces the upper side of therespective spout extension 15, and the portion of the mouth of the sackfitting thcreover, and thus grips this portion of thc mouth ofthe sackand prevents disengagement of the sack from the extension.

In order that the plate 19 may be held in its lowered position ofshifting adjustment, a keeper 31 is pivotally connected at its inner`end to the upstanding arm 32 of an angle lever 33 pivotally mounted atthe low? er end of a. bracket arm 34 upon the bottom of the hopper 1 andnormally this keeper is held by a leaf spring 35 in engagement at itsouter end in an opening 36 formed in the said plate 19. The core 37 of asolenoid 38 is connected pivotally at its upper end to the horizontalarmof the angle lever and the field of the solenoid is in circuit withspaced contacts 39 and 40, the contact 39 being mounted upon the underside of the platform 41 of a scale 42 and the contact 40 being mountedupon the top of the casing of the scale so that when the platform 41 islowered when weight is imposed thereon by the delivery of the materialinto the sack 17, the contact 39 will be lowered into engagement withthe contact 40, and the current from the battery 43 will be closedthrough the respective solenoid with the result that the downward pullexertedby the core37 upon the angle lever will result in rocking of thelever to retract the detent and permit the spring 21 to shift the plate19 upwardly to move the opening 2() out of registration with the bore ofthc respective spout 14 and thus automatically cutoff the flow ofmatcrial from the hopper, the head 30 being at the same time movedupwardly so as to release the mouth of the sack, whereupon the mouth maybe slid off the spout extension 15 and closed.

The scale 42 includes the usual scale beam 44 and adjustable weight 45,and therefore by adjusting the weight 45 along the scale beam 44, thequantity of material required to actuate the mechanism, above described,may be determined. l

In the embodiment of the invention shown in Figure 5, instead of theswitch comprising the parts 39 and 40, above described,` being mountedupon the platform of the scale, the arrangement shown in Figure 5 of thedrawing may be employed and in this figure the numeral 46 indicates a.contact member which is mountedupon the base of the scales, which baseis indicated by the numeral 47, and the. numeral 48 indicates anothercontact member which is carried by the scale beam, which in this figureis indicated. by the numeral 49, it being understood that when the outerend of the beam, upon which end the said contact 48 is mounted, is swungupwardly, the contact will be brought into mutual engagement so as toclose the circuit through a magnet cor-y responding to the magnet 38 toretract a detent corresponding tothe detent 31, previously described.

lYhat I claim is l. In a bag filling machine, a hopper, a spoutradiating from the hopper, a weighing scale having its platformpositioned to support a bag, the mouth of which is fitted over thespout, a member movable to position to open the spout, means yieldablyurging the member upwardly to position to close the spout, a detent forholding the member against upward movement, means actuated by movementof the scale platform for rendering the detent inactive, and manuallyoperable means for restoring the member to its lowered position. y

2. In a bag filling machine, a hopper, a spout radiating from thehopper, a weighing scale having its platform positioned to support abag, the mouth of which is fitted over the spout, a member movable intoand out of position to close the spout, means yieldably urging themember to an elevated position to close the spout, a detent for holdingthe member against such movement, a presser head carried by the saidmember for clamping engagement with the mouth of the bag against thespout in the lowered position of the member, whereby when the member ismoved to elevated position the presser member will be moved out ofengagement with the bag, in order to release the same, and meansactuated by the movement of the scale platform, when pre-determinedWeight is imposed upon the platform, for rendering the detent inactive.

3. In ay bag filling machine, a hopper, spouts radiating from the hopperand tangential thereto, a Weighing scale having its platform position tosupport the bag, the said spouts having extensions over which the mouthof a bag, to be filled, is adapted to be disposed, the lower side of theextension being open, a shaft rotatable within the hopper, means forrotating the shaft, blades extending from the sha-ft for directing thematerial through the spouts, a member associated with each spout andmovable into and out of posit-ion vto close v the spout, means yieldablyurging the member to closed position, a detent for holding the memberagainst such movement, and means actuated by movement of the scaleplatform for rendering the detent 5 inactive.

In testimony whereof I afliX my signature.

CLARK H. RICE.

' D| so L Al M E F2 1,795,265.-Cla1'lc H. Rice, Findlay, Ohio.BAG-FILLING MACHINE. Patentdated March 3, 1931. Disclaimer iledSeptember 7, 1933, by the patentee, the assignee, The St. Regis PaperCompany, assenting and concurring. Hereby enters this disclaimer toclaim 1 of said Letters Patent Which is in the following Words, to witz`In a bag lling machine, a hopper, a spout radiating from the hopper, aWeighing scale having its platform positioned to support a bag, themouth of which is fitted over the spout, a member movable to position toopen the spout, means yieldably urging the member upwardly to positionto close the spout, a detent for holding the member against upwardmovement, means actuated by movement of the scale platform for renderingthe detent inactive, and manuallyoperable means for restoring the memberto its lowered position.

[Ocz'al Gazette September 26, 1.933.]

